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US 2019/0315261 A1Published application
Frameless half-round trailer with butt joints
AssigneeMac Trailer Manufacturing, Inc.
InventorJames A. Maiorana
Life of this patent
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Abstract
A frameless dump trailer is provided. The frameless dump trailer includes a forward body portion and a rear body portion. Each body portion is formed from two or more panels joined together with butt-joint welds. The forward portion is first formed by welding planar sections together. After the body portion is formed from the plurality of planar panels, the larger planar portion is rolled in a rolling system to define the arcuate shape of trailer body. Then, the forward and rear body portions are welding together with a transversely extending butt-weld.
Claims20
A half-round dump trailer comprising:
- a forward end spaced apart from a rear end defining a longitudinal direction therebetween, a first side opposite a second side defining a transverse direction therebetween;
- a trailer body formed from a plurality of arcuate plates welded together at butt seams collectively defining an outwardly and downwardly facing convex outer surface on the trailer body and defining an inwardly and upwardly facing concave inner surface on the trailer body adapted to retain bulk materials;
- a longitudinally extending bottom butt welded seam between transversely adjoining arcuate plates, wherein the bottom butt welded seam defines a lowermost portion of the concave inner surface on the trailer body;
- and
- a trolley supporting the trailer body from below adjacent the rear end.
2 more elements
Dependencies are inferred from the claim text.